What is a namespace in XML and what are namespaces used for?

What is a namespace in XML and what are namespaces used for?

An XML namespace is a collection of names that can be used as element or attribute names in an XML document. The namespace qualifies element names uniquely on the Web in order to avoid conflicts between elements with the same name.

How do I add a namespace to an XML Schema?

When using prefixes in XML, a namespace for the prefix must be defined. The namespace can be defined by an xmlns attribute in the start tag of an element. The namespace declaration has the following syntax. xmlns:prefix=”URI”.

What is schema in XML example?

XML schema is a language which is used for expressing constraint about XML documents. There are so many schema languages which are used now a days for example Relax- NG and XSD (XML schema definition). An XML schema is used to define the structure of an XML document.

What is an XML Schema used for?

The purpose of an XML Schema is to define the legal building blocks of an XML document: the elements and attributes that can appear in a document. the number of (and order of) child elements.

What are the features of XML Schema?

You don’t have to learn a new language

How to use XML Schema?

– Use your XML parser to parse your XML schema – Process your XML schema with the XML Document Object Model (DOM) – Transform your XML document with Extensible Stylesheet Language Transformation (XSLT) – Reuse your XML schemas in other XML schemas – Extend your XML schema by adding elements and attributes – Reference multiple XML schemas from the same document

What does XML Schema mean?

– Structure as specified by a regular expression syntax – Requirements for interpretation of character data – Elements and attributes to be included along with their allowed structure

What is the usage of namespace in XML?

Declaring and Applying Namespaces. Namespaces are declared as an attribute of an element.